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driver: wifi: Add inventek es-WiFi driver

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es-WiFi compatible modules use IWIN AT command set.
This driver is split into several layers:
- bus layer: interface to transmit AT commands (SPI, USB, UART...)
- core layer: es-WiFi module management (state, scan...)
- offload layer: TCP/IP offload operations (connect, listen...)

This driver has been tested with stm32l4 disco iot board
(disco_l475_iot1) and the wifi sample:

$ select wifi
$ scan
$ connect "CISCO" 5 password
$ select net
$ tcp connect 192.168.1.21 4242
$ tcp send HelloWorld!

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
This commit is contained in:
Loic Poulain 2018-10-09 17:49:44 +02:00 • committed by Jukka Rissanen
commit 0b8fde39e4
9 changed files with 1451 additions and 0 deletions
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drivers/wifi/Kconfig
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@ -35,5 +35,6 @@ config WIFI_OFFLOAD
source "drivers/wifi/winc1500/Kconfig.winc1500"
source "drivers/wifi/simplelink/Kconfig.simplelink"
source "drivers/wifi/eswifi/Kconfig.eswifi"
endif # WIFI